<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Application
 * @subpackage Resource
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Navigation.php 18951 2009-11-12 16:26:19Z alexander $
 */

/**
 * Resource for setting navigation structure
 *
 * @uses       Zend_Application_Resource_ResourceAbstract
 * @category   Zend
 * @package    Zend_Application
 * @subpackage Resource
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @author     Dolf Schimmel
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Application_Resource_Navigation
extends Zend_Application_Resource_ResourceAbstract
{
	const DEFAULT_REGISTRY_KEY = 'Zend_Navigation';

	/**
	 * @var Zend_Navigation
	 */
	protected $_container;

	/**
	 * Defined by Zend_Application_Resource_Resource
	 *
	 * @return Zend_Navigation
	 */
	public function init()
	{
		if (!$this->_container) {
			$options = $this->getOptions();
			$pages = isset($options['pages']) ? $options['pages'] : array();
			$this->_container = new Zend_Navigation($pages);
		}

		$this->store();
		return $this->_container;
	}

	/**
	 * Stores navigation container in registry or Navigation view helper
	 *
	 * @return void
	 */
	public function store()
	{
		$options = $this->getOptions();
		if (isset($options['storage']['registry']) &&
		$options['storage']['registry'] == true) {
			$this->_storeRegistry();
		} else {
			$this->_storeHelper();
		}
	}

	/**
	 * Stores navigation container in the registry
	 *
	 * @return void
	 */
	protected function _storeRegistry()
	{
		$options = $this->getOptions();
		if(isset($options['storage']) &&
		isset($options['storage']['registry']) &&
		isset($options['storage']['registry']['key']))
		{
			$key = $options['storage']['registry']['key'];
		} else {
			$key = self::DEFAULT_REGISTRY_KEY;
		}

		Zend_Registry::set($key,$this->getContainer());
	}

	/**
	 * Stores navigation container in the Navigation helper
	 *
	 * @return void
	 */
	protected function _storeHelper()
	{
		$this->getBootstrap()->bootstrap('view');
		$view = $this->getBootstrap()->view;
		$view->getHelper('navigation')->navigation($this->getContainer());
	}

	/**
	 * Returns navigation container
	 *
	 * @return Zend_Navigation
	 */
	public function getContainer()
	{
		return $this->_container;
	}
}
